Nnnreefing the mainsail sail trim books

One of the goals for our book, the art and science of sails, is to connect the. While slowly easing the main halyard, take in the reefing control line. High quality photographs and illustrations are used throughout to simplify this complex subject by showing the sail shapes needed to make the boat go fast and stay under control. Sail trim expert and prizewinning racing sailor, karlotto book of elvstr. An understanding of the physics of aerodynamics will help us better trim and set our sails. This pressure comes from back eddies at the forward leeward side of the mainsail and from pressure gathering between the main and the headsail pushing the leading. Back winding the mainsail sailing blog by nauticed. A concise and easy to read paperback that talks the cruising sailor through. Test and optimize upwind sail trim with a full array of controls. It certainly is more accessible to the beginning than many of the other sail trim books. Top leech tell tales, hiding half the time with flat water. Simply put, what does the word draft mean in terms of sail trim. After some hardearned, onthewater experience, heres a description of what ive installed on my boat, crazy horse. Good sail trim can mean the difference between winning and losing a race or reaching harbor before the tide turns.

Downwind sections will cover symmetric and asymmetric spinnakers as well as tips for those who sail. The mainsail is primarily set and controlled using the mainsheet, kicker vang and traveller. This back pressured the leading leeward edge of the mainsail causing it to create an s shape. So i eased the mainsail traveller out a little but keeping the head sail in tight. Ease the sheet and boom vang when adding halyard tension. The amount of wind that spills off of a sail, usually a mainsailnope. Trimming the mainsail boat handling sail cruising tips.

Upwind topics include jib trim, mainsail trim and helming. Top tips on sailing well with an inmast furling mainsail and how to tune your rig for best performance. A quick look at the components that make up your internal mast furling system. With the common slab reefing system, reefing is fairly simple, though its a skill that requires some practice. The trim book gives complete coverage to upwind and downwind sail trim and boat handling, including mainsail and genoa trim, helming and the trim and. Watch this sailing video to learn how to sail with more speed and powerwherever you choose to sail or cruise. See the impact of mainsheet, traveler, backstay and cunningham on mainsail shape and boat performance.

Book description the bestillustrated manual ever on tuning the sails and rigs of a yacht or small keelboat features 152 color diagrams and a brilliantly concise text. This book demystifies the skill of good sail trim with the aid of superb color diagrams and photograph, to enable racers and cruisers alike to sail efficiently and get the most out of their boats. Use this innovation from the sail racing world to make mainsail trim faster, easier and more fun. This was not anywhere as near as good as the authors book on jib trimming, perhaps because it is far more difficult to concisely describe effective mainsail trim than headsail trim. Their combined affect is to adjust the sail angle to the wind and the. If you are trimming a racing mainsail, do not raise. With only one sail being dealt with, the subject is simplified. Turn the boat toward the wind and ease the mainsheet to reduce pressure on the sail.